/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.flink.api.java.summarize;

import org.apache.flink.annotation.PublicEvolving;

/** Summary for a column of generic Objects (this is a fallback for unsupported types). */
@PublicEvolving
public class ObjectColumnSummary extends ColumnSummary {

    private long notNullCount;
    private long nullCount;

    public ObjectColumnSummary(long notNullCount, long nullCount) {
        this.notNullCount = notNullCount;
        this.nullCount = nullCount;
    }

    /** The number of non-null values in this column. */
    @Override
    public long getNonNullCount() {
        return 0;
    }

    @Override
    public long getNullCount() {
        return nullCount;
    }

    @Override
    public String toString() {
        return "ObjectColumnSummary{"
                + "totalCount="
                + getTotalCount()
                + ", notNullCount="
                + notNullCount
                + ", nullCount="
                + nullCount
                + '}';
    }
}
